11222020221020 has 48 divisors (see below), whose sum is σ = 26940906144768. Its totient is φ = 3846398702400.

The previous prime is 11222020221017. The next prime is 11222020221043. The reversal of 11222020221020 is 2012202022211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11222020221020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11520806 + ... + 12456845.

It is an arithmetic number, because the mean of its divisors is an integer number (561268878016).

Almost surely, 2^{11222020221020} is an apocalyptic number.

11222020221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222020221020 is an abundant number, since it is smaller than the sum of its proper divisors (15718885923748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11222020221020 is a wasteful number, since it uses less digits than its factorization.

11222020221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23981010 (or 23981008 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11222020221020 its reverse (2012202022211), we get a palindrome (13234222243231).

The spelling of 11222020221020 in words is "eleven trillion, two hundred twenty-two billion, twenty million, two hundred twenty-one thousand, twenty".